import { ExtensionBase } from './ExtensionBase';
/**
 * Base class for any mode extension for {@link RenderManager}.
 * Mode extensions can store and restore scene state. In other words define additional mode for viewer for scene representation.
 * For example, mode extension can colorize any elements in scene and store this scene state.
 */
export declare abstract class ModeExtensionBase<T> extends ExtensionBase {
    /**Extension type (ext, mode, control).*/
    readonly type: string;
    /**Mode description or name.*/
    readonly modeDesc: string;
    /**Show or hide viewer tooltip feature if {@link enableTooltip} == true.*/
    showTooltip: boolean;
    /**Enable or disable viewer tooltip feature for this extension.*/
    enableTooltip: boolean;
    /**Mode icon name. Icon name will be used by viewer Toolbar UI component for displaying mode buttons.*/
    readonly modeIcon: string;
    protected els: number[];
    protected res: Array<T>;
    protected details: any | undefined;
    private restoreTooltipStateHandler;
    private saveTooltipStateHandler;
    elementsRes: Map<number, T>;
    /**
     * Render function for rendering tooltip content when {@link enableTooltip} == true.
     * @param container - Parent DOM container.
     */
    tooltipRender(container: HTMLElement): void;
    /**
     * Render function for rendering icon content for Toolbar component.
     * @param container - Parent DOM container.
     */
    modeIconRender(container: HTMLElement): void;
    /**
     * Sets external hook handler for restoring extension tooltip state in the local storage.
     * @param handler - handler hook function.
     */
    setRestoreTooltipStateHandler(handler: Function): this;
    /**
     * Sets external hook handler for storing extension tooltip state in the local storage.
     * @param handler - handler hook function.
     */
    setSaveTooltipStateHandler(handler: Function): this;
    /**
     * Set data to resource array and details array for elements list.
     * @param elNums - Elements self Ids.
     * @param resourceArray - Resource data array.
     * @param details -Details data array.
     * @param forceClearData - force clear data after applying by extension.
     */
    setData(elNums: number[], resourceArray: T[], details: any | undefined, forceClearData?: boolean): void;
    /**
     * Clear resource array, details array and elements list.
     */
    clearData(): void;
    /**
     * @param viewerName - Owner viewer name.
     * @param modeDesc - Mode description or name.
     * @param modeIcon - Mode icon name. Icon name will be used by viewer Toolbar UI component for displaying mode buttons.
     * @protected
     */
    protected constructor(viewerName: string, modeDesc: string, modeIcon: string);
    /**
     * Setup viewer state and modify elements by this state.
     * Should be overridden by each mode extension.
     */
    abstract setup(): void;
    /**
     * Hook when extension is activated (selected as current mode).
     * Called by ExtensionManager.selectControllerExtension().
     * @group Hooks
     */
    abstract selected(): void;
    /**
     * Hook when extension is deactivated.
     * Called by ExtensionManager.selectControllerExtension()
     * @group Hooks
     */
    abstract unselected(): void;
    /**
     * Save {@link enableTooltip} state to local storage.
     */
    saveTooltipState(): void;
    /**
     * Restore {@link enableTooltip} state from local storage.
     */
    restoreTooltipState(): void;
}